Coupling.



i UNITED STATES i Tatented October 11, 1904.

'A PATENT OFFICE.

\' COUPLING.

i SPECIFICATION forming part of Letters Patent No. 771,951, dated October 11, k1904.

Application Sled April 20, 1904. Serial No. 204.047. (No model.

a citizen of the l'nited States. residing at Brooklyn, in the county ollungs and State i of hcw l orlc, have invented -a new and usefui Coupling. of which tlie 'ollo\ving isa specilication.

This invention relates to an improvement ln couplings: and the obp'cl thereof is to proj vide a simple. ellicient. and inexpensive device adapted to this and other analogous purposes wlnch is easily applied and in which there are no projecting flanges or bolts. sometimes the cause of .serious accident.

The invention consists in I'ertain constructions and combinations, which will be hereinafter fully described and then specilically set forth in the claims hereunto appended.

in the accompanying drawings. which l'orm a part of this speeitcation, and in which like characters of reference indicate thc same parts, l-igurel illustrates one form of device embodying the invention. Fig. :2 is a sectional vicwof thedevice illustrated in Fig. l. Fig. 3 is a cross-sectional view on thc line?, 3 in Fig. l.

In the operation of this invention a clamp may be arranged to be operated upon by a rotating shaft, a second clamp ma v be arranged to cause the rotation of a second shaft, and means may be provided for transmitting the motion f-I the lirst shaft through its clamp to the second clamp. which in turn will transmit the motion to the second shaft. This means will be actuated by the lirst clamp and will operate to produce the action of the second clamp. Preferably, however. and as shown in the device illustrated in Figs. 1, 2, and 3 a plurality or set of clamps is provided arranged to be simultaneously operated by a rotatingshaft. These clamps may vary widely in construction; but,vas shown, they are preferably cylindrical in form and are marked 5. The clamps 5 are in contact with the shaft 6, so that when the shaft is rotated, as in the direction indicated by the arrow in Fig. 3, the

clamps will be moved or operated simultaneously by the shaft. A second set of clamps, 7, is preferably provided similar in construction to the clamps 5, and the clamps of this l second set are arranged toA cooperate to cause the rotationof a second shal't S, the tendency being when the elaznps T are moved in contact with the shaft S to also move the shaft, tine. causing its rotation. lt is obvious that i when t|udrivingshaft is reversed the clamps 5 will be moved on the cam-faces l0 until the sleeve J is freed from the shaft ti and the shafts thereby nncoupled and thatv the shafts i' will remain uneonplel as long'as the drivingshaft runs in a direct ionl opposite to that indicated by the arrow in Fig. Il. the sleeve being arranged to remain inactive while the driving-shaft is running i'n a reversed direction. v

ln order to transmit the motion from the first shaft to the second shaft. through the clamps., means are provided actuated by the lirst set of clamps and operating to produce the cooperating action ot' the second set of clamps. and this means maybe widely varied in construction. .\s shown, however, it consists in a sleeve 0. which is provided at one end with a pluralityotl eccentric cam-faces l0, each of said faces contactingwith one of said clamps Similarly at its other cud thesleove .fl is provided with a plurality of eccentric caxnfaces.ll, cach of said cam-faces contacting with one of the clamps Preferably these sets of cam-faces are out of alinement, and. as shown, the cam-faces lo at one end of the sleeve J are inclined in one direction and the cam-faces ll at the other end of the sleeve 9 are inclined in the opposite direction.' Preferably. and as shown, the sleeve i) is provided with a wall l2, which separates the two sets of clamps.

Meansare provided for retainingthe clamps and sleeve in position. As shown, this means consists in a pair of collars t3 H, the collar l?. being held on the shaft-76 by means of a set-screw I5 and the collar .14 being hold on the shaft b' by means of Vthe set-screw lt'.

In the operation ot' the device when the shaft G is rotated in the direction indicated by the arrow in Fig. 3 the clamps 5 will be operated by the shaft and caused to roll on the eccentric faces 10, where they become wedged and actuate the sleeve 9. The sleeve being in contact with the clamps f7 operates to set IOO them in niotion,'rolliiig them on the eccentric I faces 1l until 'they become wedged on .the Shaft 8, thas producing tiie coiperating action ofthe clamps T. which causes the rotation of the second shaft 8. A The invention is no* to be restricted to the I construction -shown and described, as the construction may be widely varied without departing from the invention. 'llie invention may also be used for purposes other than the coupling of shafts, and such other use is conteniplated.

'hat is claimed is l. In a coupling, the combination with a clamp arranged to be operated by a driviug shaft, of a second clamp arranged to rotatea Second shaft, aia. means normally actuated by the iirst clamp to produeea movement of said second clamp to rotate the second shat't` said means being arranged to remain inactive while the driving-shaft is ruiming in a reversed direction, substantiall as descrilwd.

2. In a coupling, the combination with a set E of clamps arranged to be simultaneously opf erated by a driving-shaft. of a second set of clamps arranged to coiperate to rotate a secondshaft, and means` normally actuated by the first. set of clamps to produce the ctnperating action of the second set of clamps, said means n being arranged to remain inactive while the driving-shaft. is i'uiiniiig in a reversed direci tion, substantially as described. i 3. In acoupling, the combination with aset f of clamps arranged to be simultaneously operated by a driving-shaft, of a second `set of Q clamps arranged to cooperate to rotate a second shaft, and a sleeve normally actuated b v the tirst set of clamps to produce the coperating action of the second `set of clamps `said sleeve being arranged to remain inactive while the driving-shaft is running in a reversed dil rection, substantially as described. i 4.' In a coupling, the combination with a se of clamps arranged to be simultaneously opg eratcd by a driving-shaft, of a second set of l clamps arranged to cooperate to rotate a sec- -ond shaft, and a sleeve having two sets of eccentric cam-faces one set. of cani-faces being irl-,9st

out of alineiiient with the other set of eamfaces said sleeve being normally actuated by the first set of clamps to produce the coperiiting action of the second set.of clamps Said sleeve being arranged to remain inactive while thedriving-shatt is ruiming in a reversed dii rectiou, substantially as described.

ln a coupling. the combination with a set of cylindrical clamps arranged to besinnlitaneously operated bya driving-shaft. of a second set of cylindrical clamps arranged to cooperate to rotate a .second shaft, and a sleeve having at one cnil a set of eccentric cam-faces inclined in oneiiircetion each of -said faces contacting with one of the tirst set of clamps and having at its other end a set of eccentric camfaces inclined in the opposite direction each of said faces` contacting with one of the sec. ond set of clamps said sleeve being normally actuated by the tirst set of clamps to produce the cooperative action of the second set. of clamps said sleeve being arranged to remain inactive while the driving-shaft is ruiming in a reversed direction, substantiaiiy as described.

t. ln a coupling` the combination with a set of cylindrical clamps arranged to be simultaneously operated by a driving-sha f t. of a second set of cylindrical clamps arranged to cooperate to rotate a second shaft and a sleeve having at one end a set of eccentric cam-faces inclined in one direction and liavinir at its other end a set of eccentric cam-faces inclined in the opposite direction and being provided with a wall separating said sets of cam-faces said sleeve being normali) actuated by the iirst set of clamps` to produce the cooperating action of the .second set of clamps said sleeve being arranged to remain inactive while the driving-shaft is running in a reversed direction. substantially as described.

In testimony whereof l have `signed niyname to this specification in the presence of two subscribing witnesses.

VERNER J. V'AHLSTROBL 'itnesses:

J. l). H. Banaan, SYDNEY I. Pacsom'r. 

